
Connect the battery
Your terminal may have
been shipped with its battery
disconnected. If so, locate the
battery lead and plug it gently but
firmly into the adjacent socket (it will
fit one way only).
You can now replace the light-grey
top cover.
Connect power
1 Attach the connector from the
power adapter to the socket on
the far right of the rear panel.
2 Plug the power adapter main
body into a nearby mains outlet.
The right hand green indicator
on the front panel will light to
show when power is supplied.
Place your T355 terminal in a suitable location, but keep it at least one metre from your
telephone to avoid interference. If the signal strength is insufficient, you may need to
adjust the position of the antenna (see below).
Connect the antenna
1 Align the supplied antenna (or another suit-
able GSM antenna) with the circular connec-
tor on the far left of the rear panel.
2 Attach the antenna and twist the connector
collar clockwise until it is finger-tight - do not
overtighten.
3 In use, the antenna should always be verti-
cal. The supplied antenna has a hinge so
thatyoucanpositionitcorrectly.Whenthe
unit is wall mounted the antenna should point
straight down.
Connect a telephone
1 Connect a standard corded telephone to the
socket on the rear panel. If your phone has
a different connector than a standard RJ11
type, use an adaptor (supplied in some kits).
Switch on
On the rear panel, press and hold the red button
until the front panel amber and centre green indi-
cators illuminate, then release the button.
The centre green indicator will show a rapid on/off flash while the
terminalinitialisesitself(approx15secs).Whentheinitialisationis
complete, the T355 terminal will do one of two things:
Amber Centre
green
Right
hand
green
Centre green indicator changes to a
short flash every two seconds.
This is the ‘standby’ flash and shows that
the terminal is ready for use. Please see
the rear page for further details.
Centre green indicator extinguishes and
amber indicator shows a rapid on/off
flash.
This indicates that a PIN code is
required to unlock the SIM card.
Enter a PIN code
1 Lift the handset (you will hear a series of short tones instead of a dial tone).
2 On the telephone keypad, dial the following:
*8*[PIN code] # where [PIN code] is a valid 4-digit code for the SIM card.
• Ifthecodeisaccepted:Youwillheartwoshortbeeps,theamberindicatorwill
extinguish and the centre green indicator will show a short ‘standby’ flash every
two seconds. The T355 terminal is now ready for use, please see the rear page for
details about making and receiving calls.
• Ifthecodeisrejected: Youwillhearasinglelowpitchedbeep.Checkthat
you have the correct PIN code for the SIM card in use, replace the handset and then
try again. Note: If you enter an incorrect PIN code three times, the SIM card will lock
and you will need to get a special unblocking (PUK) code.
Black
wire
To switch off Press & hold the red button until indicators illuminate, then release.
OR